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Elpidite

Pictures (22 Images total)

Elpidit
Views (Image: 1292360630): 1461
Elpidit

Größe: 70 mm; Fundort: Poudrette Quarry, Mont Saint-Hilaire, Rouville Co., Québec, Kanada

Copyright: David K. Joyce
Contribution: slugslayer 2010-12-14
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Elpidit
Views (Image: 1295886135): 2015
Elpidit

Höhe: 3,5 cm, Fundort: Mont Saint-Hilaire, Rouville Co., Québec, Kanada

Copyright: Michael Roarke
Contribution: thdun5 2011-01-24
Locality: Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Elpidit
Views (Image: 1215468781): 1871
Elpidit

FO.: Umba Mine bzw. Umbozero-Bergwerk am Ufer des Umbozero-Sees am östlichen Ufer des Berges Alluaiv, Halbinsel Kola (zentral), Lovozero Tundra, Russland / Stufengröße: 11 x 9 cm

Collection: Museum für Naturkunde Gera
Copyright: Hrouda
Contribution: Hrouda 2008-07-08
Locality: Umbozero / Alluaiv / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland
Elpidit
Views (Image: 1262696219): 1187
Elpidit

Bildbreite: 15 mm; Fundort: Poudrette quarry (Demix quarry; Uni-Mix quarry; Desourdy quarry), Mont Saint-Hilaire, Rouville Co., Québec, Kanada

Copyright: Stephan Wolfsried
Contribution: Hg 2010-01-05
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Elpidit
Views (Image: 1306006674): 906
Elpidit

Poudrette Quarry, Mont Saint-Hilaire, Quebec, Canada, 48x20 mm

Collection: Embarak
Copyright: Embarak
Contribution: Embarak 2011-05-21
Locality: Poudrette Quarry (Demix Quarry; Uni-Mix Quarry; Desourdy Quarry) / Mont Saint-Hilaire / La Vallée-du-Richelieu RCM / Montérégie, Region / Québec / Kanada
Elpidit
Views (Image: 1319291781): 735
Elpidit

Bildbreite: 5,1 mm; Fundort: Alluaiv, Lovozero-Massiv, Kola-Halbinsel, Murmansk, Russland

Copyright: Enrico Bonacina
Contribution: Hg 2011-10-22
Locality: Alluaiv / Lovozero / Kola-Halbinsel / Murmansk, Oblast / Nordwestrussland, Föderationskreis / Russland

Collectors Summary

Color braun, farblos, gelbbraun, weiß, hellrot
Streak color weiß
Hardness (Mohs) 5
Solubility +++ HF, - HCl, H2SO4
Crystal System orthorhombisch, Pbm2

Chemism

Chem­ical formula

Na2ZrSi6O15·3 H2O

Chem­ical com­po­si­tion

Natrium, Silicium, Zirconium, Sauerstoff, Wasserstoff

Unit weight: 599.7543424 u; Number of atoms in the formula: 33

Info

Empirical formula:

Na2ZrSi6O15·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.01

6

18.18

1.0079470

6.0476820

Oxygen

O

48.02

18

54.55

15.9994300

287.9897400

Sodium

Na

7.67

2

6.06

22.9897702

45.9795404

Silicon

Si

28.10

6

18.18

28.0855300

168.5131800

Zirconium

Zr

15.21

1

3.03

91.2242000

91.2242000

Anal­y­sis wt%

SiO2 : 59.44, ZrO2 : 20.48, Na2O : 10.35, H2O : 9.61 (Ref: Hintze, Handbuch der Mineralogie, 1904-1974)

Strunz 9th edi­tion incl. updates

9.DG.65

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
G: Ketten- und Bandsilikate mit 3-periodischen Einfach- und Mehrfachketten
65:Elpidit-Gruppe

Lapis Clas­sifica­tion

VIII/F.23-010

VIII: SILIKATE
F: Ketten- und Bandsilikate
23: Dreierbänder [Si6O15/17] 6-/10- und modifizierte Dreierbänder

Clas­sifica­tion by Hölzel

9.DN.200

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
N: ~[Si6O17]10--...~[Si6O15]6--...3-Band Xonotlite-Group

Dana 8th edi­tion

72.05.04.02

72: Phyllosilicates Phyllosilicate Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
05: Phyllosilicates Phyllosilicate Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with corrugated and complex layers
04: Elpidite/armstrongite

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

braun, farblos, gelbbraun, weiß, hellrot

Streak color

weiß

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

max. Birefrin­gence

0.012

Birefringence chart\! Elpidite title=Birefringence chart Elpidite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.562

RI value β

1.568

RI value γ / ε

1.574

Ri mean

1.568

2V angle

Biaxial (+) 83°~

Optical Data Luminescence

Color LW-UV (365nm)

 

gelblich grün

Color SW-UV (254nm)

 

gelblich grün

SW-UV Other Col­ors

 

weiß

Most Common Acti­vator

(UO2)2+ (Uranyl-Ion) als Verunreinigungen

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mm2

Space Group number

28

Space Group

Pbm2

Cell param­e­ters a (Å)

7.33

Cell param­e­ters b (Å)

14.47

Cell param­e­ters c (Å)

7.07

Cell param­e­ters a/b or c/a

0.507

Cell param­e­ters c/b

0.489

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

749.88

X-Ray Pow­der Diffrac­tion

7.08(100),
6.52(50),
5.11(100),
4.77(50),
4.13(50),
3.24(100),
3.10(100)

XRD chart Elpidite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5

VHN (Hard­ness Vick­ers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.54

2.656 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HF, - HCl, H2SO4

(Co-)Type locality

(Co-)Type locality

Grönland/Qaasuitsup Kommunia/Narsaarsuk (Narssârssuk)

Preface

Author (Name, Year)

Lindström, 1894

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 211

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Elpidite

Na2ZrSi6O15·3 H2O

orthorhombisch : mm2 : Pbm2

9.DG.65

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Elpidite

Na2ZrSi6O15·3 H2O

orthorhombisch : mm2 : Pbm2

VIII/F.23-010

Terskite

Na4Zr(H4Si6O18)

orthorhombisch : mm2 : Pnc2

VIII/F.23-020

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Elpidite

Na2ZrSi6O15·3 H2O

orthorhombisch : mm2 : Pbm2

9.DN.200

Canasite

K3Na3Ca5Si12O30(OH,F)4

triklin : 1 : P1

9.DN.240

Fluorcanasite

K3Na3Ca5Si12O30F4·H2O

monoklin : m : Cm

9.DN.245

Frankamenite

K3Na3Ca5[(F,OH)4|(Si6O15)2]·H2O

triklin : 1 : P1

9.DN.250

Armstrongite

CaZr(Si6O15)· 3 H2O

monoklin : 2 : C2

9.DN.260

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Rhodesite

KHCa2Si8O19·5H2O

orthorhombisch : mmm : Pmcm

72.05.01.01

Monteregianite-(Y)

KNa2YSi8O19·5H2O

monoklin : 2/m : P21/n

72.05.01.02

Macdonaldite

BaCa4Si16O36(OH)2·10H2O

orthorhombisch : mmm : Cmcm

72.05.01.03

Delhayelite

K7Na3Ca5Al2Si14O38F4Cl2

orthorhombisch : mmm : Pmmn

72.05.01.04

Hydrodelhayelite

KCa2AlSi7O17(OH)2·6H2O

orthorhombisch : mm2 : Pnm21

72.05.01.05

Seidite-(Ce)

Na4Sr(Ce,La)Ti[(F,OH)|Si8O22]·5H2O

monoklin : 2/m : C2/c

72.05.01.06

Leucosphenite

BaNa4Ti2B2Si10O30

monoklin : 2/m : C2/m

72.05.02.01

Nordite-(Ce)

(Ce,La)(Sr,Ca)Na2(Na,Mn)(Zn,Mg)Si6O17

orthorhombisch : mmm : Pcca

72.05.02.02

Nordite-(La)

Na3SrLaZnSi6O17

orthorhombisch : mmm : Pcca

72.05.02.03

Ferronordite-(Ce)

Na3(Sr,Ca)(Fe2+,Mn2+)(Ce,La)[Si6O17]

orthorhombisch : mmm : Pcca

72.05.02.05

Manganonordite-(Ce)

Na3(Sr,Ca)(Mn2+,Fe2+)(Ce,La)[Si6O17]

orthorhombisch : mmm : Pcca

72.05.02.06

Ferronordite-(La)

Na3Sr(La,Ce)Fe[Si6O17]

orthorhombisch : mmm : Pcca

72.05.02.07

Kvanefjeldite

Na4(Ca,Mn)Si6O14(OH)2

orthorhombisch : mmm : Pcab

72.05.03.01

Armstrongite

CaZr(Si6O15)· 3 H2O

monoklin : 2 : C2

72.05.04.01

Elpidite

Na2ZrSi6O15·3 H2O

orthorhombisch : mm2 : Pbm2

72.05.04.02

Varennesite

Na8(Mn,Fe3+,Ti)2[(OH,Cl)2|(Si2O5)5]·12H2O

orthorhombisch : mmm : Cmcm

72.05.05.01

Other languages

German

Elpidit

Spanish

Elpidita

French

Elpidite

English

Elpidite

Russian

Эльпидит

Japanese

エルピド石

Alternative Name

Traditional Chinese

斜鈉鋯石

Simplified Chinese

斜钠锆石

Traditional Chinese

纖矽鋯鈉石

Simplified Chinese

纤硅锆钠石

Traditional Chinese

鈉鋯石

Simplified Chinese

钠锆石

CNMNC symbol

Symbol

Epd

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Elpidit
Google-Bilder-Suche - search for: Elpidit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Elpidit

English pages

Mindat - search for: Elpidite
Webmineral - search for:Elpidite
Handbook-of-Mineralogy - search for: Elpidite
RRUFF - Raman, XRD and other mineral data - search for: Elpidite
RRUFF - References and PDF downloads - search for: Elpidite
American-Mineralogist-Crystal-Structure-Database - search for: Elpidite
Athena - search for: Elpidite
Strahlen.org - search for: Elpidite
Mineralienatls.de (Forum) - search for: Elpidit

Russian pages

Webmineral.ru - search for: Эльпидит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Elpidit
Crystal-Treasure.com - search for: Elpidit
Bosse - search for: Elpidit
Edelsteine Neuburg - Gundolf Fischer - search for: Elpidit

Locations with GPS information